Reverse Gear Brake (B1)

DETERMINING SHIM THICKNESS





Required thickness of shim (A in illustration) is determined from calculating gap -x- based on measured variables l and m:

Determine Constant k

Formula For Gap-x-:

Table For Constant-k-:

k = constant in mm, defined according to transmission housing and number of plates.

Variables l and m must be calculated as shown below

Determining Variable l





- Place straightedge (A in illustration) onto outer race of one-way clutch.
- Press piston all the way down in direction shown (arrows in illustration).
- Measure to inner edge of piston using depth gauge (B in illustration).

Example:
Depth gauge reading - Straightedge thickness = Calculated dimension l
51.80 mm - 48.20 mm = 3.60 mm





Determining Variable m
- Place straightedge (A in illustration) on thrust plate.
- Compress set of plates, including pressure plate, in direction shown (arrows in illustration).
- Measure thickness of plate set using depth gauge (B in illustration).

Example:
Depth gauge reading - Straightedge thickness = Calculated dimension m
77.20 mm - 48.20 mm = 29.00 mm

Calculating Gap x





B1 Adjusting Shims





- Use calculated gap x to select shims according to table above.
Service replacement shims are available in a range of thicknesses from 1.00 to 1.90 mm.

CHECK MEASUREMENT
- Install components up to one-way clutch, then secure with circlip.





- Use feeler gauge (A in illustration) to measure gap between the plates.
Specifications:
Minimum: 1.20 mm
Maximum: 1.80 mm